Cation substitution, crystal structures, and thermoelectric properties of layered perovskite-type barium stannates

层状钙钛矿型锡酸钡的阳离子取代、晶体结构和热电性能

• 批准号: 20550181
• 负责人: YASUKAWA Masahiro
• 金额: $ 1.83万
• 依托单位: Kochi National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20550181/
• 关键词: 層状ペロブスカイト; スズ酸バリウム; 熱電特性; セラミックス; BaSnO_3; 電気伝導率; ゼーベック係数; 出力因子; 熱伝導率; 性能指数; 錯体重合法; 放電プラズマ焼結

Preparation of cation-substituted solid solutions with electroconductivity was performed for layered perovskite-type barium stannates Ba_<n+1>SnnO_<3n+1> (n=integer), and the possibility as thermoelectric materials was investigated by estimation of thermoelectric properties at high temperatures for the sintered ceramics. The solid solutions with La or Sb for Ba_2SnO_4 (n=1) and Ba_3Sn_2O7 (n=2) were found to be all insulators. While for BaSnO_3 (n=∞), N-type Ba_<1-x>La_xSnO_3 (x=0.005) ceramic showed relatively high values of a power factor of 4.3×10^<-4>Wm^<-1>K^<-2> and a dimensionless figure of merit ZT of 0.098 at 1073K. The power factors for P-type BaSn_<1-x>Co_xO_3 ceramics, which were needed for device application, were also elucidated.

对层状钙钛矿型锡酸钡Ba_（n+1）SnnO_（3 n +1）（n=整数）进行了阳离子取代的导电固溶体的制备，并通过对烧结陶瓷高温热电性能的评价，探讨了其作为热电材料的可能性。Ba_2SnO_4（n=1）和Ba_3Sn_2O_7（n=2）的La或Sb固溶体均为绝缘体。而对于BaSnO_3（n=∞），N型Ba_<1-x>La_xSnO_3（x=0.005）陶瓷在1073 K时具有较高的功率因数（4.3×10 ~（-1）<-4>Wm·<-1>K ~（-1））<-2>和无量纲优值（ZT）（0.098）。本文还阐明了P型BaSn_<1-x>Co_xO_3陶瓷器件应用所需的功率因数。

项目成果

Thermoelectric properties of P-type BaSnO_3 ceramics doped with cobalt

钴掺杂P型BaSnO_3陶瓷的热电性能

• 发表时间: 2011
• 期刊: Journal of the Japan Society of Powder and Powder Metallurgy Vol.58, No.3
• 作者: M.Yasukawa;Y.Hamada;T.Kono;K.Ueda;H.Yanagi;S.W.Kim;H.Hosono
• 通讯作者: H.Hosono

Ba_<1-x>La_xSnO_3セラミックスの熱電特性に関するSr固溶効果

Sr固溶体对Ba_<1-x>La_xSnO_3陶瓷热电性能的影响

• 发表时间: 2010
• 作者: 安川雅啓;千頭洋平;河野敏夫;植田和茂;柳博;金聖雄;細野秀雄
• 通讯作者: 細野秀雄

Thermoelectric properties of P-type BaSn0_3 ceramics doped with cobalt

钴掺杂P型BaSn0_3陶瓷的热电性能

• 发表时间: 2011
• 期刊: Journal of the Japan Society of Powder and Powder Metallurgy
• 作者: M.Yasukawa;Y.Hamada;T.Kono;K.Ueda;H.Yanagi;S.W.Kim;H.Hosono
• 通讯作者: H.Hosono

層状ペロブスカイト型スズ酸バリウムのカチオン置換と伝導体化の検討

层状钙钛矿锡酸钡的阳离子取代及电导率研究

• 发表时间: 2011
• 作者: 濱田幸宏;安川雅啓
• 通讯作者: 安川雅啓

High-temperature thermoelectric properties of La-doped Ba_<1-x>Sr_xSnO_3 ceramics

La掺杂Ba_<1-x>Sr_xSnO_3陶瓷的高温热电性能

• 发表时间: 2009
• 期刊: Journal of the Japan Society of Powder and Powder Metallurgy Vol.56, No.9
• 作者: M.Yasukawa;T.Kono;K.Ueda;H.Yanagi;H.Hosono
• 通讯作者: H.Hosono